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Diffstat (limited to 'java/sca/modules/implementation-web-client/src/main/java/org/apache/tuscany/sca/implementation/web/client/ClientServlet.java')
-rw-r--r--java/sca/modules/implementation-web-client/src/main/java/org/apache/tuscany/sca/implementation/web/client/ClientServlet.java273
1 files changed, 0 insertions, 273 deletions
diff --git a/java/sca/modules/implementation-web-client/src/main/java/org/apache/tuscany/sca/implementation/web/client/ClientServlet.java b/java/sca/modules/implementation-web-client/src/main/java/org/apache/tuscany/sca/implementation/web/client/ClientServlet.java
deleted file mode 100644
index 0917804d65..0000000000
--- a/java/sca/modules/implementation-web-client/src/main/java/org/apache/tuscany/sca/implementation/web/client/ClientServlet.java
+++ /dev/null
@@ -1,273 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-package org.apache.tuscany.sca.implementation.web.client;
-
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Enumeration;
-import java.util.HashMap;
-import java.util.Map;
-
-import javax.servlet.ServletConfig;
-import javax.servlet.ServletContext;
-import javax.servlet.ServletException;
-import javax.servlet.ServletRequest;
-import javax.servlet.ServletResponse;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
-import org.apache.tuscany.sca.assembly.ComponentReference;
-import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
-import org.apache.tuscany.sca.runtime.RuntimeComponent;
-import org.directwebremoting.Container;
-import org.directwebremoting.create.AbstractCreator;
-import org.directwebremoting.extend.CreatorManager;
-import org.directwebremoting.extend.Handler;
-import org.directwebremoting.extend.Remoter;
-import org.directwebremoting.servlet.DwrServlet;
-import org.directwebremoting.servlet.EngineHandler;
-import org.directwebremoting.servlet.PathConstants;
-import org.directwebremoting.servlet.UrlProcessor;
-
-/**
- * Tuscany customized DWR Servlet to implement support for the DWR binding
- *
- * Handles requests for SCA services and references that use <binding.dwr>
- */
-public class ClientServlet extends DwrServlet {
- private static final long serialVersionUID = 1L;
-
- private transient Map<String, ServiceHolder> services;
-// private transient List<String> referenceNames;
- private transient boolean initialized;
- private transient Map<String, String> initParams;
-
- public static final String SCRIPT_PATH = "/org.oasisopen.sca.componentContext.js";
-
- public ClientServlet() {
- this.services = new HashMap<String, ServiceHolder>();
-// this.referenceNames = new ArrayList<String>();
-
- this.initParams = new HashMap<String, String>();
- // maybe use <binding.dwr> attributes to define the init params
- initParams.put("activeReverseAjaxEnabled", "true");
- }
-
- @Override
- public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException {
- super.service(req, res);
- }
-
- /**
- * Initialize the Servlet
- * There is a single instance of this Servlet which is registered
- * for multiple path mappings, but the init should only run once.
- */
- @Override
- public void init(ServletConfig servletConfig) throws ServletException {
- if (!initialized) {
- super.init(patchConfig(servletConfig));
- addScriptHandler();
- initServices();
- initialized = true;
- }
- }
-
- /**
- * Add in the handler to process the HTTP get for /sca/scaDomain.js
- *
- * This wrappers the DWR Engine handler which returns the DWR engine.js script,
- * this wrappers that handler so as to add Tuscany specific header and footer code
- * to the DWR engine.js to define the Tuscany SCADomain control functions and
- * functions for each SCA service and reference that use <binding.dwr>.
- */
- private void addScriptHandler() {
-
- UrlProcessor urlProcessor = (UrlProcessor)getContainer().getBean(UrlProcessor.class.getName());
-
- final EngineHandler engineHandler =
- (EngineHandler)getContainer().getBean(PathConstants.URL_PREFIX + "/engine.js");
-
- final Handler scaDomainScriptHandler = new Handler() {
- public void handle(HttpServletRequest request, HttpServletResponse response) throws IOException {
- PrintWriter out = response.getWriter();
- out.println("/** Apache Tuscany componentContext.js Header */");
-
- engineHandler.handle(request, response);
-
- tuscanyFooter(request, out);
- }
-
- };
-
- // add the scaDomainScriptHandler to the urlProcessor
- // bit of a hack, there's probably cleaner way to get it registered
- urlProcessor.afterContainerSetup(new Container() {
- public Object getBean(String name) {
- return scaDomainScriptHandler;
- }
- public Collection<?> getBeanNames() {
- return Arrays.asList(new String[] {PathConstants.URL_PREFIX + SCRIPT_PATH});
- }
- });
- }
-
- /**
- * Adds the JavaScript defining SCADomain, its control functions,
- * and functions for all the available SCA services and references.
- */
- private void tuscanyFooter(HttpServletRequest request, PrintWriter out) {
- out.println("if (SCA == undefined) var SCA = new Object();");
- out.println("if (SCA.componentContext == undefined) {");
- out.println(" SCA.componentContext = new Object();");
- out.println(" SCA.componentContext.serviceNames = [];");
- out.println(" SCA.componentContext.serviceProxys = [];");
- out.println(" SCA.componentContext.getService = function(serviceName){");
- out.println(" var i = SCA.componentContext.serviceNames.indexOf(serviceName);");
- out.println(" return SCA.componentContext.serviceProxys[i];");
- out.println(" };");
- out.println(" if (componentContext == undefined) var componentContext = SCA.componentContext;");
- out.println("}");
-
-// out.println("/** Apache Tuscany scaDomain.js Footer */");
-// out.println();
-// out.println("function scaDomain() { }");
-// out.println();
-// out.println("// SCA services");
-
- // Use the DWR remoter to generate the JavaScipt function for each SCA service
- Remoter remoter = (Remoter)getContainer().getBean(Remoter.class.getName());
-
-
- for (String serviceName : services.keySet()) {
- String path = request.getServletPath() + "/" + services.get(serviceName).c.getName();
- String serviceScript = remoter.generateInterfaceScript(serviceName, path);
- out.println(serviceScript);
- out.println("SCA.componentContext.serviceNames.push('" + serviceName + "');");
- out.println("SCA.componentContext.serviceProxys.push(" + serviceName + ");");
-// ServiceHolder s = services.get(serviceName);
-// final Class<?> iface = ((JavaInterface)s.cr.getInterfaceContract().getInterface()).getJavaClass();
-// for (Method m : iface.getMethods()) {
-// out.println("if (" + serviceName + " == null) var " + serviceName + " = {};");
-// out.println("SCA.componentContext.serviceNames.push('" + serviceName + "');");
-//// out.println("SCA.componentContext.serviceProxys.push(new JSONRpcClient('" + serviceName + "').Service);");
-// out.println(serviceName + "." + m.getName() + " = function(p0, callback) {");
-// out.println(" dwr.engine._execute(" + serviceName + "._path, '" + serviceName + "', '" + m.getName() + "', p0, callback);");
-// out.println(" }");
-// }
- }
-
-// if (referenceNames.size() > 0) {
-//
-// out.println("// SCA reverse ajax control functions");
-// out.println();
-// out.println("scaDomain.open = function() { dwr.engine.setActiveReverseAjax(true); };");
-// out.println("scaDomain.close = function() { dwr.engine.setActiveReverseAjax(false); };");
-//
-// out.println();
-// out.println("// SCA references");
-// out.println();
-//
-// // the JavaScript function for SCA references has an
-// // empty impl as it uses DWR severside "push"
-// for (String referenceName : referenceNames) {
-// out.println("function " + referenceName + "() { }");
-// }
-// }
-
- out.println();
- out.println("/** End of Apache Tuscany componentContext.js */");
- out.println();
- }
-
-// /**
-// * Add an SCA reference to be added to the DWR runtime
-// */
-// public void addReference(String name) {
-// referenceNames.add(name);
-// }
-
- /**
- * Add an SCA service to be added to the DWR runtime
- */
- public void addService(ComponentReference cr, RuntimeComponent c) {
- ServiceHolder holder = new ServiceHolder();
- holder.name = cr.getName();
- holder.cr = cr;
- holder.c = c;
- services.put(cr.getName(), holder);
- }
-
- /**
- * Defines each SCA service proxy instance to DWR
- */
- private void initServices() {
- CreatorManager creatorManager = (CreatorManager)getContainer().getBean(CreatorManager.class.getName());
-
- for (final ServiceHolder service : services.values()) {
-
- final Class<?> iface = ((JavaInterface)service.cr.getInterfaceContract().getInterface()).getJavaClass();
- final Object instance = service.c.getComponentContext().getServiceReference(iface, service.cr.getName()).getService();
-
- creatorManager.addCreator(service.cr.getName(), new AbstractCreator() {
- public Class<?> getType() {
- return iface;
- }
-
- public Object getInstance() throws InstantiationException {
- return instance;
- }
- });
- }
- }
-
- // utility class to aid passing around services
- private class ServiceHolder {
- String name;
- ComponentReference cr;
- RuntimeComponent c;
- }
-
- /**
- * Patch the ServletConfig to enable setting init params for DWR
- * and so DWR can't see the Tuscany servlet's init params.
- */
- private ServletConfig patchConfig(final ServletConfig servletConfig) {
- ServletConfig patchedContext = new ServletConfig() {
- public String getInitParameter(String name) {
- return initParams.get(name);
- }
- public Enumeration<?> getInitParameterNames() {
- return Collections.enumeration(initParams.keySet());
- }
- public ServletContext getServletContext() {
- return servletConfig.getServletContext();
- }
- public String getServletName() {
- return servletConfig.getServletName();
- }
- };
- return patchedContext;
- }
-
-}
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